Microsoft CEO Satya Nadella worries hackers could cause a 'breakdown of world order'

• Satya Nadella warned there could be a "breakdown of world order" in an interview with NBC News.
• The Microsoft CEO said that's a real risk if nations don't strike a "cyber Geneva Convention."
• It comes after Microsoft found it'd been attacked by Russian hackers earlier this month. 

Satya Nadella said there's a real risk of a "breakdown of world order" if nations don't come up with a cyber "Geneva Convention." 

In an interview with NBC Nightly News on Tuesday, the Microsoft CEO called for the US, Russia and China to unite and guard themselves against cyber attacks from malevolent states.